Amalgamator.



No. 672,524. Patented Apr. 23, I90! G. GHIGLIERI &. J. M. SCHOFIELD.

AMALGAMATOB.

(Application filed Aug. 4, 1899. Renewed Sept. 22, 1900.]

(No Model.)

p36 Hftherods33.

UNITED STATES ATENT FFICE.

CALIFORNIA.

AMALGAMATOR.

SPECIFICATION forming part of Letters Patent No. 672,524, dated April 23, 1901.

Application filed August 4, 1899. Renewed $eptember 22, 1900. Serial No. 30,85 (No model.)

To all whom it may concern:

Be it known that we, GUGLIELMO GHIeLI- ERI and JAMES M. SQHOFIELD, citizens of the United States, residing at Stockton, in the county of San Joaquin and State of California, have invented certain new and useful Improvements in Amalgamators; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to improvements in amalgamators, and more particularly to that I I scribed and claimed.

In the accompanying drawings, Figure 1 is g a perspective view of an amalgamator cm bod ying ou rinvention. Fig. 2 is a bottom plan view of the pan. Fig. 3 is a longitudinal section of the same.

In the drawings the same reference characters indicate the same parts of the invention.

1 denotes a rectangularframe from which is suspended a vibrating pan 2 by means of 4 denotes the main driving-shaft, provided with a pocket-gear 5, which meshes with a pinion 6 on a counter-shaft 7, the outer end of which carries a crank 8, from the wrist-pin of l which a rod 9 extends to the transverse arm of a bell-crank lever 10, and from said arm a second rod 9' extendsto a similar lever 10, and 11 11 denote connecting-rods which extend from the longitudinal arms of said bellcrank levers to the stud-screws 12 12, fixed in the bottom of the pan or tray, so that the rotation of the driving-shaft will impart a latfixed in the gear-wheel 5, and which imparts a longitudinal jarring movement to the tray. 15 15 denote a series of transverse parallel amalgam-rollers, either smooth, corrugated,

or flanged, mounted in the tray, and 16 16 a corresponding series of amalgam-aprons similarly mounted.

17 17 denote rigid partitions over which the Water flows.

AA denote insulated conductor-strips on which the rolls and aprons rest and which are connected to the negative wire B of a battery or dynamo current, while the positive pole G is connected to the tank in such a manner as to come in contact with the water therein.

As noted in Fig. 3, the rear end of the tray is lower than the front, so as to permit the current of water to flow from the front to the rear end, where it is discharged.

In operation, the finely-pulverized au riferous ore from the mill or other source is fed into the front end of the machine and in the course of its travel to the rear end is brought into intimate contact with the amalgamating rollers and aprons, and the free gold thus extracted.

It will of course be understood that various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described the invention, what is claimed, and desired to be secured by Letters Patent, is

1. An amalgamator comprising a pendulating tray and means for imparting a longitudinal and a transverse vibrating movement thereto, a tran sversc series of fixed partitions, and a series of parallel amalgam-rollers, and aprons removably suspended in said tray intermediate said partitions, substantially as and for the purpose set forth.

2. An amalgamator comprising a stationary frame, a suspended tray provided with fixed partitions and a depending post, a series of amalgam rollers and aprons suspended in said tray; in combination with the drivingshaft, a gear-wheel fixed thereon, and a wristpin carried by said gear-wheel, a countershaft, and a crank and pinion fixed on said counter-shaft, said pinion being in mesh with said gear-wheel, a crank-lever fulcrumed in the frame and having one arm operatively connected to said crank and the other to said amalgam rollers and aprons in eleetriealconnection with said strips, substantially as and for the purpose set forth.

In testimony whereof we have hereunto set 15 our hands in presence of two subscribing witnesses.

GUGLIELMO GHIGLIERI. JAMES M. SCHOFIELD.

Witnesses:

JOHN P. KOEHLER,

ELIHU B. SIOWE. 

